git: 1a1fd76d0a36 - main - arm64/pmap: freed only used for PV_STATS

From: Warner Losh <imp_at_FreeBSD.org>
Date: Fri, 18 Nov 2022 17:04:31 UTC
The branch main has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=1a1fd76d0a36f2d0502836841f0e283597ffcc4d

commit 1a1fd76d0a36f2d0502836841f0e283597ffcc4d
Author:     Warner Losh <imp@FreeBSD.org>
AuthorDate: 2022-11-18 17:04:04 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2022-11-18 17:04:04 +0000

    arm64/pmap: freed only used for PV_STATS
    
    When PV_STATS is defined, freed is used. Otherwise it isn't. Mark it as
    __pvused and define __pvused appropriately.
    
    Sponsored by:           Netflix
    Reviewed by:            tsoome, rpokala, andrew
    Differential Revision:  https://reviews.freebsd.org/D37438
---
 sys/arm64/arm64/pmap.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sys/arm64/arm64/pmap.c b/sys/arm64/arm64/pmap.c
index 7df16bc41922..3f4665921631 100644
--- a/sys/arm64/arm64/pmap.c
+++ b/sys/arm64/arm64/pmap.c
@@ -180,8 +180,10 @@ __FBSDID("$FreeBSD$");
 
 #ifdef PV_STATS
 #define PV_STAT(x)	do { x ; } while (0)
+#define __pvused
 #else
 #define PV_STAT(x)	do { } while (0)
+#define __pvused	__unused
 #endif
 
 #define	pmap_l0_pindex(v)	(NUL2E + NUL1E + ((v) >> L0_SHIFT))
@@ -5405,7 +5407,8 @@ pmap_remove_pages(pmap_t pmap)
 	struct rwlock *lock;
 	int64_t bit;
 	uint64_t inuse, bitmask;
-	int allfree, field, freed, i, idx, lvl;
+	int allfree, field, i, idx, lvl;
+	int freed __pvused;
 	vm_paddr_t pa;
 
 	lock = NULL;